3a, Mansion Road, Southampton, SO15 3LJ
About 3a
3a is an end-of-terrace house in Southampton (SO15 3LJ). It has a recorded floor area of 58 m² (around 624 sq ft), construction records dating it to 2003-2006 and council tax band B. The latest certificate (September 2021) shows a D (score 66), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since November 2008. Between certificates, window efficiency went from Average to Good, hot-water efficiency went from Poor to Average and lighting went from Good to Very Good; while roof efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 90), a 2-band jump. Main heating runs on electricity.
Everything you need to know about 3a
The true value, the hidden risks and the full sale history, in one report.
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The data behind every report
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
Window efficiency improved
Floor insulation added or improved
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
From £885 · Includes VAT
Planning history
3a has no planning applications on record.
But the area is active
4 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
3a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£211,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 2 sales in SO15 3LJ: £139,500 (2023–2015).
Nearby sales in SO15 3LJ
Versus other Mansion Road homes
On floor area, 3a stands well clear of the street.
EPC Rating
66 (D)
Street avg 71 (C)
Floor Area
58 m²
Street avg 53 m²
CO₂ Emissions
3.4 t/year
Street avg 2.6 t/year
Habitable Rooms
4 rooms
Street avg 3 rooms
Everything you need to know about 3a
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee
The data behind every report
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
12/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Napier House — bus stop.
Closest school
0.2 km
Freemantle Church of England Community Academy. 27 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode
Daytime· 07:00 – 23:00
53.8dB
Night-time· 23:00 – 07:00
44.8dB